Lexmark X940e Owners Manual
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Repair information4-9 7510 Go Back Previous Next Front left cover removal 1. Open the printer front door assembly. 2. Remove the two screws securing the front left cover (A) to the machine. 3. Move the front left cover (A) up and pull out. 4. Remove the front left cover (A). Duplex media inverter assembly removal 1. Open the printer left door assembly. 2. Remove the E-clip securing the fuser exit roll assembly (A) to the machine. 3. Remove the bushing (B). 4. Remove the fuser exit roll assembly (A). 5. Remove the two screws securing the duplex media inverter assembly (C). 6. Remove the duplex media inverter assembly (C). A A B E-clip
4-10Service Manual 7510 Go Back Previous Next Duplex unit assembly removal 1. Remove the two screws securing the duplex unit assembly (A) to the printer left door assembly (B). 2. Gently pull the duplex unit assembly (A) from the printer left door assembly (B). Note: When removing the duplex unit assembly (A), the plastic panel (C) may become detached. 3. Remove the duplex unit assembly (A). C C AB
Repair information4-11 7510 Go Back Previous Next Sensor (duplex wait) removal 1. Remove the duplex unit assembly. See “Duplex unit assembly removal” on page 4-10. 2. Remove the screw securing the bracket (A) to the duplex unit assembly (B). 3. Release the hooks securing the sensor (duplex wait) (C) to the bracket (A). 4. Remove the sensor (duplex wait) (C). 5. Disconnect the connector from the sensor (duplex wait) (C). Switch (duplex left door interlock) removal 1. Remove the duplex unit assembly. See “Duplex unit assembly removal” on page 4-10. 2. Release the hooks securing the switch (duplex left door interlock) (A). 3. Remove the switch (duplex left door interlock) (A). 4. Disconnect the connector from the switch (duplex left door interlock) (A). C A B Connector A
4-12Service Manual 7510 Go Back Previous Next Duplex media exit turn guide removal 1. Remove the rear cover assembly. See “Rear cover assembly removal” on page 4-5. 2. Remove the rear left middle cover. See “Rear left middle cover removal” on page 4-6. 3. Remove the MPF feed unit assembly. See “MPF feed unit assembly removal” on page 4-8. 4. Remove the printer left door assembly. See “Printer left door assembly removal” on page 4-36. 5. Lay the printer left door assembly on a flat surface. 6. Move the duplex media exit turn guide (A) toward the rear, and release the hook from the front hinge. 7. Remove the duplex media exit turn guide (A). Replacement note: When replacing the printer left door assembly (B), ensure that the black lines are aligned on the damper assembly (C), or the door will not properly operate. A B
Repair information4-13 7510 Go Back Previous Next Replacement note: When replacing the printer left door assembly (B), ensure that the duplex media exit turn guide (A) is held up, or the printer left door assembly (B) will not close properly. Duplex drive motor removal 1. Remove the duplex unit assembly. See “Duplex unit assembly removal” on page 4-10. 2. Remove the screw securing the connector access cover (A) to the duplex unit assembly (B). 3. Disconnect the connector from the duplex drive motor (C). 4. Remove the harness from the clamps. 5. Remove the three screws securing the duplex drive motor (C) to the duplex unit assembly (B). Note: When removing the duplex drive motor (C), the belt (D) will become detached. 6. Remove the duplex drive motor (C). C Black line ConnectorA B D C
4-14Service Manual 7510 Go Back Previous Next Duplex controller card assembly removal 1. Remove the duplex unit assembly. See “Duplex unit assembly removal” on page 4-10. 2. Remove the screw securing the connector access cover (A) to the duplex unit assembly (C). 3. Disconnect the connectors from the duplex controller card assembly (B). 4. Remove the two screws securing the duplex controller card assembly (B) to the duplex unit assembly (C). 5. Remove the duplex controller card assembly (B). Connector C A B
Repair information4-15 7510 Go Back Previous Next Fuser unit assembly removal CAUTION: The fuser unit assembly can be extremely hot, handle with care to avoid getting burned. 1. Open the printer left door assembly. 2. Loosen the two thumb screws to release the fuser unit assembly (A) from the machine. 3. Pull the two handles on the fuser unit assembly (A) away from the machine. 4. Remove the fuser unit assembly (A) from the machine. Handles Thumb ScrewsA
4-16Service Manual 7510 Go Back Previous Next Transfer belt unit assembly removal Warning: When removing the transfer belt unit assembly, do not touch the belt surface, or damage will occur. Note: Detach the finisher if equipped. Refer to the MFP or the Printer Finisher Service Manual. 1. Open the printer front door assembly. 2. Open the transfer belt access cover. 3. Press the button on the transfer belt lift latch (A). 4. Raise the transfer belt lift latch (A) to its upper-most position. 5. Lower the transfer belt lift handle (B) to its lower-most position. 6. Lift the safety latch (C) while pulling the transfer belt unit assembly (D) out of the machine. 7. Remove the transfer belt unit assembly (D). Replacement warning: When reinstalling the transfer belt unit assembly, do not touch the belt surface, or damage will occur. A B Button CD
Repair information4-17 7510 Go Back Previous Next Transfer belt cleaning assembly removal Warning: When removing the transfer belt unit assembly, do not touch the belt surface, or damage will occur. Note: It is not required to completely remove the transfer belt unit assembly (B) from the machine. It can be partially pulled out to provide access to the transfer belt cleaning assembly (A). 1. Remove the transfer belt unit assembly. See “Transfer belt unit assembly removal” on page 4-16. 2. Remove the two screws securing the transfer belt cleaning assembly (A) to the transfer belt unit assembly (B). 3. Remove the transfer belt cleaning assembly (A). Replacement warning: When reinstalling the transfer belt unit assembly, do not touch the belt surface, or damage will occur.
4-18Service Manual 7510 Go Back Previous Next transfer belt lift handle assembly removal Warning: When replacing the transfer belt lift handle assembly, the two transfer belt lift mechanisms must be correctly timed or print quality problems and damage will occur. Replacement warning: After replacing the transfer belt lift handle assembly (B), the two transfer belt lift mechanisms must be correctly aligned or print quality problems and damage will occur. Once the alignment is correctly set, replace the two plastic rack gear caps. Replacement warning: When replacing the transfer belt lift handle assembly (B), ensure the two timing marks on the two sector gears are aligned with the two timing knotches in the two rack gears. Replacement warning: Gently raise and lower the transfer belt lift handle assembly (B) and ensure that the lift mechanicsm is aligned properly and no binding occurs 1. Remove the front door assembly. See “Printer front door assembly removal” on page 4-3 2. Remove the waste toner bottle. 3. Remove the right cover assembly. See “Right cover assembly removal” on page 4-4. 4. Remove the transfer belt unit assembly. See “Transfer belt unit assembly removal” on page 4-16 5. Remove the front left cover. See “Front left cover removal” on page 4-9. 6. Remove the screw securing the plastic cover (A) to the machine. 7. Remove the plastic cover (A).